Add support to disable import/export/player on Cloud Foundry for now.

Ideally, import/export would probably work with a Mongo/Redis instance
to store and retrieve examples for quick display.  However, these
functions are disabled for now if running in CloudFoundry.
Re-enabling the "To Player" button for all contexts

Inadvertantly disabled the "To Player" button, which actually works
just fine on Cloud Foundry.
fixes label placement for producers and consumers
Merge branch 'master' into pr/6
fixes label placement
new build of Simulator.pde